Buffering door closer
A door closer and buffer cylinder technology, applied in the direction of wing closers, switches with brakes, door/window accessories, etc. The effect of low production cost, improved operation texture, and improved safety
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[0027] The present invention will be specifically and further described below in conjunction with the accompanying drawings. A buffer door closer, characterized in that it includes a bottom case 1 and a mask 2, a limiting area is formed between the bottom case 1 and the mask 2, and a lower sliding plate 3 and an upper sliding plate 4 are sequentially stacked and installed in the limiting area from bottom to top , a swing arm 5 is hinged to the hinge hole 11 on the bottom case 1 through the swing seat 51, and the swing arm 5 rotates around the hinge hole 11:
[0028] Wherein, a first tension spring 6 is arranged between the lower plate 3 and the bottom box, and the first tension spring 6 pulls the lower plate to always move away from the swing seat 51;
[0029] A second tension spring 7 is arranged between the bottom case 1 and the swing seat 51, and the second tension spring 7 pulls the swing seat 51 to always rotate in the opening direction of the swing arm 5;
[0030] A thi...
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